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General Maintenance (physics, math, and electrical) > Physics > Flashcards

Physics Flashcards

1
Q

What is heat

A

Vibration of Molecules

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2
Q

What is the formula of Mass, Weight, and Gravity

A

Weight / Mass * Gravity

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3
Q

What is the formula of Density, Weight, and Volume

A

Weight / Density * Volume

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4
Q

What is the formula for Specific Gravity

A

Density of Substance / Density of Water

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5
Q

What is the formula for potential energy

A

PE / weight * height

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6
Q

What is the formula for Kinetic Energy

A

1/2 mass * velocity^2

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7
Q

What is the formula for Work, Force, Distance

A

Work / Force * Distance

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8
Q

What is the formula for Power, Work, Time

A

Power / Work * Time

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9
Q

What is the effects of large gear to small gear

A

Increased Speed, Decreased Torque

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10
Q

What are the six times of simple machines

A

Lever, Pulley, Wheel and Axle, Inclined Plane, Screw, and Gear

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11
Q

Machine Defined

A

multiply force or to multiply speed

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12
Q

What are the two types of mechanical advantage and what are there formulas

A

Mechanical Advantage (Force) = Force In / Force Out

Mechanical Advantage (Distance) = Distance In / Distance Out

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13
Q

How is Weight dispersed through a pulley and what is the Mechanical Advantage of a pulley is based on?

A

Weight is proportionally dispersed through out the ropes,

Ratio of input rope to output ropes

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14
Q

What is force in and force out of a lever

A

Resistance is force in and effort is force out

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15
Q

What is the lever formula

A

Effort * Effort Arm = Resistance * Resistance arm

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16
Q

Large gear and Small Gear speed and torque force

A

High Torque/Slow and

Fast/Low Torque

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17
Q

What direction does a driven gear turn from a drive gear

A

Opposite of the drive gear

18
Q

What is an idler gear

A

Gear put in between two gears to make the driven gear spin in the same direction as drive gear

19
Q

What are mechanical advantage formulas for speed and force gears

A

Speed MA = Driven / Drive

Force MA = Drive / Driven

20
Q

What is the formula for Incline Planes

A

Effort * Effort Length = Resistance * Resistance Arm

21
Q

Pressure Defined

A

Amount of force acting on a specific amount of surface area

22
Q

PSI defined

A

Pounds Per Square Inch

23
Q

What is the flow of pressure

A

High Pressure always chases low pressure

24
Q

Ambient Pressure Defined

A

Pressure in a certain area

25
Q

What is one defining characteristic of Fluid Pressure

A

Fluid is not compressible

26
Q

Pascal’s Law Defined and Formula

A

How Pressure acts on a fluid and how the fluids force acts on surrounding objects

Force (lbs) = Area^2 * Pressure (in^2)

27
Q

Flow of Pressure formula

A

Volume of Moved input * Distance moved = Output of Volume moved * Distance moved

28
Q

What is characteristics of High Pressure and Low pressure

A

High Pressure air = Rises, Low Density, Low Velocity, High Temperature

Low Pressure air = Falls, High Density, High Velocity, Low Temperature

29
Q

What are the Five Mechanical Stresses

A

Tension, Compression, Torsion, Bending, and Shear

30
Q

What happens to pressure if volume is constant and temperature goes up and why

A

Pressure Increases

Increase in temperature increases vibration of particles as particles are vibrated and hit each other more the energy is transferred between other particles

31
Q

What is Gas laws formula

A

Volume one * Pressure one = Volume two * Pressure two

32
Q

What is Charles Law

A

All gases expand and contract in direct proportion to the change in the absolute temperature

33
Q

What is Charles Laws formula for when volume is constant and volume is different

A

Pressure one * Temperature two = Pressure two * Temperature one

Volume one * Absolute Temperature one = Volume two * Absolute temperature one

34
Q

What is the combined formula for Charles law and Boyle’s law

A

(Pressure one * Volume one) / Temperature one =

(Pressure two * Volume two) / Temperature two

35
Q

What is the pressure of mixed gases

A

The pressure of mixed gases is summed

36
Q

What is Absolute Pressure

A

pressure adjusted for atmospheric pressure

37
Q

What unit does absolute temperature use

A

Rankine

38
Q

Is water vapor denser or less dense then air

A

Water vapor is less dense then air,

39
Q

What is Absolute Humidity

A

Actual Water vapor in mixture of air and water

40
Q

What is Relative Humidity

A

Ratio of the amount of water vapor actually present in the atmosphere to the amount that would be present if the air were saturated

41
Q

What is Dewpoint

A

Temperature at which humid air must be cooled to condense

42
Q

What is Vapor Pressure

A

Portion of atmospheric pressure that is exerted by the moisture in the air

General Maintenance (physics, math, and electrical) (3 decks)

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